Lighter Tyvek https://www.amazon.com/Kitemaking-Material-Durable-Lightweight-Breathable/dp/B00M7W9G22/ref=mp_s_a_1_3?crid=2EQRJE3L8EPLL&keywords=1443r+tyvek&qid=1698850684&sprefix=1443r,aps,160&sr=8-3&mibextid=Zxz2cZ A slightly lighter grade of Tyvek.
